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Sintered brick is a kind of wall brick. It has a history of more than 2,000 years in our country, but it is still very popular. Here are its raw materials. The main raw material of ordinary clay bricks is silty or sandy clay, and its main chemical components are, and crystal water. Due to different geological formation conditions, it may also contain a small amount of alkali metal and alkaline earth metal oxides, etc. The production process of clay bricks mainly includes soil extraction, mud refining, brick making, drying, roasting, etc. The content of impurities in the raw materials also has a great impact on the baking temperature of clay bricks and the color of the finished product r /> In addition to clay, shale, gangue, fly ash, etc. can also be used as raw materials to make sintered bricks because their chemical composition is similar to clay. However, because their plasticity is not as good as that of clay, a certain amount of clay is often added to meet the plasticity requirements when making bricks. In addition, the coal gangue and fly ash in the bricks are flammable industrial wastes and contain unburned carbon that is also burned in the bricks during roasting, thus saving a large amount of external coal for roasting. This type of brick is also called internal combustion brick or semi-internal combustion brick. The article comes from .r./
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